MonocleRunner

import com.sun.glass.ui.PlatformFactory;
import com.sun.glass.ui.monocle.MonoclePlatformFactory;
import com.sun.glass.ui.monocle.NativePlatformFactory;
import com.sun.glass.ui.monocle.headless.HeadlessPlatform;
import javafx.application.Application;

import java.lang.reflect.Field;

public class MonocleRunner {

    public static void main(String[] args) {
        assignPrivateStaticField(PlatformFactory.class, "instance", new MonoclePlatformFactory());
        assignPrivateStaticField(NativePlatformFactory.class, "platform", new HeadlessPlatform());
        Application.launch(MonocleApplication.class, args);
    }

    private static void assignPrivateStaticField(Class<?> cls, String name, Object value) {
        try {
            Field field = cls.getDeclaredField(name);
            field.setAccessible(true);
            field.set(cls, value);
            field.setAccessible(false);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}